Industry News
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Summary of the differences between globe valves, ball valves and gate valves
Suppose there is a water supply pipe with a cover. Water is injected from the bottom of the pipe and discharged toward the pipe mouth. The cover of the water outlet pipe is equivalent to the closing member of the stop valve. If you lift the pipe cover upward with your hand, the water will be disc...Read more -
What is the CV value of a valve?
CV value is the English word Circulation Volume The abbreviation of flow volume and flow coefficient originated from the definition of valve flow coefficient in the field of fluid engineering control in the West. The flow coefficient represents the flow capacity of the element to the medium, spec...Read more -
A brief discussion on the working principle and use of valve positioners
If you take a walk around the chemical plant workshop, you will definitely see some pipes equipped with round-headed valves, which are regulating valves. Pneumatic diaphragm regulating valve You can know some information about the regulating valve from its name. The key word “regulation...Read more -
PN nominal pressure and Class pounds ( Lb )
Nominal pressure (PN), Class American standard pound level ( Lb ), is a way of expressing pressure, the difference is that the pressure they represent corresponds to a different reference temperature, the PN European system refers to the pressure at 120 ° C The corresponding pressure, while CLass...Read more -
Analysis of the four main causes of leakage of ball valves and measures to deal with them
Through the analysis of the structural principle of the fixed pipeline ball valve, found that the sealing principle is the same, using the “piston effect” principle, and only the sealing structure is different. Valve in the application of the problem is mainly manifested in different ...Read more -
How to choose between concentric, double eccentric and triple eccentric butterfly valve?
The difference in the structure of the butterfly valve distinguishes four types of butterfly valves, namely: concentric butterfly valve, single eccentric butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valve. What is the concept of this eccentricity? How to decide...Read more -
What Is Water Hammer and How to Fix it?
What is Water Hammer? Water hammer is when there is a sudden power failure or when the valve is closed too fast, due to the inertia of the pressure water flow, a shock wave of water flow is generated, just like a hammer hitting, so it is called water hammer. The force generated by the back and f...Read more -
What Are The Connection Methods Of Valves And Pipes ?
Valves are usually connected to pipelines in various ways such as threads, flanges, welding, clamps, and ferrules. So, in the selection of use, how to choose? What are the connection methods of valves and pipes? 1. Threaded connection: Threaded connection is the form in ...Read more
